Molding apparatus.



W. G. MOURE.

MOLDING APPARATUS. 'APPLIQA'TmN FILED my s, 1911.

Patented Jan. 2; 1912.

2 SHEETS-SHEET 1.

WITNESSES INVEN'I'OR W. G. MOORE. MOLDING APPARATUS. APPLICATION FILEDMAY 8, 1911.

7 1,013,303. Patented Jan. 2, 1912.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

WILLIAM G. MOORE, 0F IITDIANAPOLIS, INDIANA, ASSIGNOR TO THENATIONALMAL- LEABLE GAS'IINGS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OFOHIO.

MOLDING .AI'IARATUS.

Specification of Letters Patent.

Application filed May a, 1911. Serial No. 625,332.- I

Patented J an 2, 1912.

a mold; Fig. 2.is a cross-section on the line- 11-11 of Fig. 1; Fig. 3is a perspective view of the end bar of Figs. 1 and 2; Fig. 4 is anenlarged partial elevation, .partly in section, of the end bar; Fig.- 5is a plan view showing a modified form Fig. 6 is a side elevation of thesame,-partly in section; Fig. 7 is a cross-section on the line VII-VIIof Fig. 5; Fig. 8 is a partial end view of Fig. 5 and Fig. 9 is a detailview of the yielding guide, which I prefer to employ.

My invention relates to the supporting and guiding of gates or patternswithout the use of a match plate resting in a rabbet in either the copeor drag.

The object of the inventionis to provide an improved gate support andguide, which is also designed for receiving a mechanical vibrator forthe patterns.

In the preferred form, the supporting carrier is arranged to receive aplurality of pattern gates which are adjustable along it; so that thecarrier-may receive different gates at different-points in its length.

In both forms, the guidefor the gate or runner is slightly yielding soas to provide for irregularities in manufacturing or machining. Inbothforms the carrier is also arranged to receive a vibrator engine.

In the drawings, referring to the form of Figs. 1 to 4, inclusive, 2, 2are end bars of a carrier, the end portions 3, 3 of which are slottedand united by the end rods 4, 4, having threadedends secured by locknuts 5. Theseend portions 3, 3 are preferably of loop form, and the sots of the loops are arranged to receive the gate supporting rods 6,which are held therein by adjustable lock nuts 7 Thesegate-supporting'rods are adjustable along the bars 3 so 'as to bring thegates to the desired oint. I show two gates of patterns 8, 8 in t 'sform, each gate having branch gates connected to patterns shown at 9;The pattern-supporting rods 6 are shown as screwed into the ends of thegate or runner, and I have shown the outer threaded ends of the rods 6as flattened on opposite sides to permitinsertion within the slots orloop portions of the bars 3., This is also the case with the end bars 4,4 ofthe frame. By this arrangement two 'or more gates or patterns can bebuilt up into theadjustable carrier, the size of which can be changedboth as to width and length to adapt it to any suitable sizes and shapesof gates or patterns, and of flasks. It is only necessary to release thelock nuts for the gate bars and the end. bars to remove any gate ofpatterns and insert a new set or build up the'end bars into anothercarrier.

The rods 4, 4 maybe substituted by other rods for other sizes of flasks;

Each bar 2has a laterally enlarged portion 10 atits center, which isprovided with a dovetailed transverse guideway receiving an adjustableguide 11 which is held in place by the undercutting or dovetailing ofthe recess. This guide llis preferably of the form shown in Fig. 9,having anelongated hole 12 to receive screw 13 which enters-- theenlarged portion 10, the front end of the port-ion 14 which contactswith the gui e pin .15 on the drag 16 of the flask. The guide .11 mayslide in the guide-way and is pressed inwardly against the-guide pin bya flat spring 17 whose ends are. secured to the end face of the block 10by screws 18, its intermediate portion bearing against the rounded endof the guide 11.

19 represents a mechanical vibrator or rapper, which is-securedto theenlarged portion 10 by means of the bolt 20. t In the use of thisdevice, the cope, the drag, and the match, are recessed to receive therods 6, these mating recesses forming holes'through which the rodsextend. .The drag is first assembled bbttom side .up on the match withthe gates of patterns lying between the match and drag, the rods 6extending though holes formed by the mating recesses in the .drag andmatch. .The sand is then packed in thedrag, the bottom board 21 applied,and the parts turned over. The match is then removed, and the cope shownguide 'having' a V-shaped depending flan e g in dotted lines-at-22 isput in place, its end guides engaging the guide pins 15 on the drag. Thecope is then rammed up in the usual manner, the cope lifted ofl,thepatterns and bars removed, after rapping, and

the cope then put back inplace. In this form, w en the cope and drag'areassembled for filling the cope, the gates of patterns lie between thecope and-drag with the rods 6 extending through. the mating recesses inthe sides of the cope and drag, the vibrator ends or bars 3 and the rods4 lying outside of and inclosing the flask. The guides 11 are heldin'spring' contact with the vertical guide pins or dowels on the drag,so that when the patterns are withdrawn from the .sand. they will be.guided in parallelism;

. While the major portion of the adjustment the vibrator bars 3 and thepatterns to re-' 25.

of the bars 3 is accomplished bythe adjustable rods and lock nuts, smallvariations mthe position of the dowels-will be compensatedfor by theyielding of the guides 11. This yielding of the guides also allows ceivea slight vibration relative to the flask, thus loosening the patterns inthe mold cavity without substantial vibration'of the In Figs. 5 to 8,inclusive, I show another form of the invention with asingle gate ofpatterns-8. In this case the vibrator bars 3 are shortened, and theslotted end portions are dispensed with. In this form the vibra-.

tor ends are enlarged and cutout to form passageways 23 for' the' guidepins on the drag, a plate 24 being fastened across this" passagew-ay'andcontaining the dovetailed guide-way for the guide 11. In this form alsothe guide has a slotted hole to receive the screw 13. and the springarrangement 17 is substantially the same as in the first form. In thisform the gate or runway may be made integral with or permanentlyattached to' both of the vibratorends or bars;

and in this .case the patterns are not in-- closed within a carrier, asin the first form.

The advantages of my invention result from the simplicity and ease ofoperation of the device and the accurate-guiding of the pattern ates toand trom their position. The outer spring-pressed guides compen-' satefor slightirregularities and insure tightv engagement between the guidesand the pins.

In the preferred form, provision is made for the use of the vibratorbarswith different guide pin on the mold; substantially as described.

2'. In molding apparatus, a pattern carrier having a yielding guide wlthan elongated inner face, and a spring arranged to press the guideinwardly against a relatively fixed guide pin of the mold; substantiallyas described.

3. In molding apparatus, a pattern carrler having slots or recessesarranged to allow adjustment of the gate supports laterally in the moldand lengthwise of the carrier; substantially 'as described.

. 4. In molding apparatus, a pattern car-- rier having.gatesupportsadjustable longi-- tudinally I thereof, said carrier having aguide to engage a dowel or pin on the mold; substantially as described-5. In molding apparatus, a pattern carrier consisting of end ,bars andadjustable side connecting "rods outside' the mold substantially asdescribed.

6.'In molding apparatus, a pattern carrier consisting of end barsandadjustable sideconnecting rods outside. the mold, said end bars havingadjustable runway supports; substantially-as described. 7.;In moldingapparatus, a pattern carrier'comprisingend bars having adjust-ablepattern supports arranged to connect them,

.,said bars .havin'gguides arranged to engage dowel pins on the mold;substantially as described.

8. In molding-- apparatus, a pattern carrier comprising end bars havingadjustable pattern supports arranged to connect them, said bars havingyielding guides arranged to engage dowel pms on the mold; substantiallyas described.

-9. In molding apparatus, a pattern carrier comprising end bars, gatesupports connecting the end bars and adjustable along them, said barshaving guides'arranged to engage the dowel pins of the mold, and avibrator secured to one of said bars; substantially as described.

10. In moldlng apparatus, a pattern carrier comprising end bars havingend connecting rods arranged to be exterior to the mold, and removablegate supports connecting the bars, said bars having yielding guides vtoengage the dowel pins of the mold: substantially as described.

11. In molding apparatus, a pattern carrier having an inwardly movableguiding slide with a vertically elongated inner face, and a springarranged to press said guide inwardly against a guide pin on the mold;substantially as described.

12. In molding apparatus, a pattern carrier having a dovetailed slidingguide, and a spring arranged to press said guide insubstantially asdescribed.

13. In molding apparatus, a pattern carright angles thereto,substantially as de- 10 rier having end bars, and gate supportsconscribed. nected to the end bars and adjustable in tWo In testimonywhereof, I have hereunto set directions atright angles to eachother,-submy hand.

stantially as described. I

14. In molding apparatus, a pattern ear- WILLIAM MOORE" not having agate support secured thereto, Witnesses: said gate support beingadjustable-along the OWEN S. WRIGHT,

carrier and also in an endwise direction at CARL C. GIBBS.

